Geology for ELR DEC is based on British Geological Survey (BGS) low-resolution data sampled at 100 metre intervals along the ELR. The geology presented should not be treated as accurate or complete. Data marked with Ⓤ is classed as undifferentiated by the BGS.
| Mileage | Material | Deposit | Bedrock |
|---|---|---|---|
| 52M 1155y to 53M 0605y | Gault Formation and Upper Greensand Formation Ⓤ - Mudstone, Sandstone and Limestone | ||
| 53M 0605y to 53M 1616y | Sand and Gravel | River Terrace Deposits Ⓤ | Gault Formation and Upper Greensand Formation Ⓤ - Mudstone, Sandstone and Limestone |